Oh my goodness! This is the most difficult low piece-count puzzle I have ever built. I tried building it without looking at the picture, but knowing that the size was 18x3 and what the theme was obviously. I had seen the picture. So, I dumped the puzzle out and turned the box upside down. 8 hours later I had a number of doublets, triplets, and a few quadruplets. Still , 40 or so of the pieces were unpaired! It was taking me 20-30 minutes to place each piece. I finally conceded defeat and turned the box so I could see the picture. Getting out my old trusty puzzle light and magnifying glass, I was able to place my groups sort of where they belonged and started making some connections. About 5 hours later, with 15 pieces left, I hobbled into bed exhausted. 2 more hours of work early in the morning and I finally completed it. Even with 5 or 6 pieces left, it was a challenge! This puzzle is VERY HIGH VALUE for the money. The pieces are long, huge and complicated, hence the low piece count, but the square inches make it a larger puzzle than you think for the piece count! You definitely want to get this one for your self and for your cerebral friends! Challenge them to build it without looking at the picture and see how long they can go! I am sure it is doable, but it would probably take 6-7 days at 8 hours a day and psychological that is just WRONG for a 79 piece puzzle! LOL. So worth it!